A company that is trying to build a facility to ship coal overseas is appealing Oregon’s decision to reject a key permit for the project.

Ambre Energy, the Port of Morrow and the state of Wyoming filed the appeal with the Oregon Court of Appeals on Tuesday as the parties hope to keep the prospects of shipping coal from the West Coast to energy-hungry Asian markets alive. Getting approval for the Morrow Pacific project is key for the coal industry because it’s one of the last three remaining proposals on the coast, but the other two in Washington are viewed as having a higher environmental bar to pass.